Solenoid is proving a little bit confusing
While getting through solenoid I found that the field outside it is extremely small and is negligible. Also the field at ends is half of that of center. When I google it I doesn't found any satisfying explanation that why the field at ends is half that of center and almost zero outside.
Since current is flowing in upward direction on one side and downward in other hence they might cancel each other. But i have got another doubt here that since the solenoid can be thought of as many circular rings and coil has not zero field outside it.So how it can be possible in solenoid.
I didn't get the explanation that why at edges the field is half. Please correct me if I am wrong.
Thanks in advance!